baber/WOPTO huggingface dataset:
Patent CA-2131319-A1 (CA)
Inventor: BAXTER RODNEY C
IPC: C22B34/12
Filed: 1991-07-23
Abstract: This  invention provides a process  for the recovery of titanium values from a complex matrix comprising titanium nitride. The process comprises chlorinating  the titanium nitride  in  the  matrix  to  obtain  a  reaction  product containing titanium chloride, and separating the titanium chloride from the reaction product.  The invention also provides  for  the  production  of  said  complex  matrix containing titanium nitride by nitriding titanium values in complex  titanium-containing  starting materials  such  as complex  metallurgical  titaniferous  slags  and  ilmenite, perovskite, armalcolite and fassaite.
Patent CA-2133627-A1 (CA)
Title: Endoscopic surgical instrument with rotatable inner shaft
Inventor: HURD STANLEY M
IPC: A61B19/00
Filed: 1994-10-04
Abstract: A reusable endoscopic surgical instrument includes a handle assembly attached to a slender shaft assembly.      The shaft assembly includes inner and outer shafts, with the inner shaft being rotatable by operation of the handle assembly to rotate a surgical tool operably connected to the distal end of a pushrod disposed within the inner shaft. The handle assembly includes a first actuating mechanism for actuating the pushrod to operate the surgical tool and a second actuating mechanism for rotating the inner shaft. The outer shaft is axially slidable with respect to the inner shaft to cover a flush port system in the handle assembly for cleaning and improved sterilizability of the instrument.
Patent CA-2138431-A1 (CA)
Inventor: BRAUN EUGENE R
IPC: F16D23/06
Filed: 1994-12-19
Abstract: A baulkring-type synchronizer (18) includes cone clutch friction surfaces (24,48 and 26,50) and jaw clutch teeth (36b,28 and 36c,30) for frictionally synchronizing and positive connecting gears (14,16) to a shaft (12). A plurality of rigid members (72) are drivingly interposed between blocker teeth (44,46) affixed to baulkrings (40,42) and self-energizing ramp surfaces (70a-70d) defined on an outer circumference of a hub 32 affixed to the shaft (12). A shift sleeve (34) is slidably splined to the hub (32) and is moved by an operator shift force (Fo) and an additive force (Fa) provided by the self-energizing ramp surfaces. Both forces (Fo and Fa) react against the blocker teeth to engage the friction surfaces. The self-energizing ramp surfaces may be long enough to assist shift completion as unblocking occurs. The rigid members (72) are mounted with limited relative rotation on the shift sleeve (34) e.g. in circumferential slots (34a). <IMAGE>
Patent CA-2141885-A1 (CA)
Inventor: GENISE THOMAS A
IPC: F16H59/48
Filed: 1995-02-06
Abstract: A control system/method for determining vehicular gross combined weight (GCW) is provided. GCW is determined immediately after upshifts of a transmission (10) and requires only input signals indicative of engine or driveline torque (DL), vehicle acceleration (dOS/dt) and currently engaged gear ratio (GR).
Patent CA-2142140-A1 (CA)
Inventor: CASTREN RISTO
IPC: B21D7/024
Filed: 1995-02-09
Abstract: An apparatus for bending heat-exchanger tubes, which heat-exchanger tubes have heat-exchanger ribs, preferably having a needle construction. In the apparatus, the heat-exchanger tubes are placed one above the other to form a battery. The battery of heat-exchanger tubes is fed first into a first bending-device portion of the bending device, in which the heat-exchanger tubes are bent in one direction. After this, the tube battery is fed further, and bending is performed in the second bending-device portion in the opposite direction of bending, whereby a wave-shaped form is obtained.
Patent CA-2142283-A1 (CA)
Title: Forming web
Inventor: ZIMMERMANN DANIEL
IPC: D21F1/00
Filed: 1993-08-20
Abstract: A forming web for the sheet-forming part of a paper machine consists of a more than one-layered, in particular flat woven fabric made of plastic fibres with longitudinal threads which extend in the travelling direction and cross-threads which extend transversely thereto. One group of cross-threads lies in the plane of the paper side and floats there on longitudinal threads whose number is at least the same as the number of cross-threads on which the longitudinal threads float on the paper side. The plane of the machine side exclusively consists of a second group of cross-threads. In order to improve paper web formation and abrasive properties, the forming screen is characterized by the following features: (a) at least part of the cross-threads (4, 7, 8, 13, 17, 20, 21, 26, 30, 31) have a flattened cross-section; (b) the flattened cross-sections (4, 7, 8, 13, 17, 20, 21, 26, 30, 31) are arranged in such a way that their cross-section is larger in the plane of the fabric than across the plane of the fabric; (c) the ratio between the cross-section in the plane of the fabric and the cross-section across the plane of the fabric lies between 1.2 and 2.2. preferably between 1.2 and 1.8.
Patent CA-2143264-A1 (CA)
Inventor: LEVIN MICHAEL I
IPC: H02J3/01
Filed: 1995-02-23
Abstract: The invention provides a zero phase sequence current zig-zag filter with adjustable zero phase sequence impedance and a method for adjusting the impedance of the filter. Impedance is adjusted in discrete increments by detuning the filter one phase at a time. Detuning is accomplished using taps or auxiliarywindings, whereby the ratio of the effective number of turns of the first winding relative to the second winding on the same core leg is changed independently foreach phase of a three phase power supply.
Patent CA-2144274-A1 (CA)
Title: Seat belt retractor system
Inventor: BLACKBURN BRIAN K
IPC: B60R22/48
Filed: 1995-03-09
Abstract: A vehicle seat belt retractor system (10) includes two seats (16, 18) with each having its own integrated seat belt webbing retractor (60, 112). Each retractor (60, 112) includes locking means (76, 80) for blocking belt withdrawal in response to an electrical signal.  At a central location in the vehicle spaced from the seats (16, 18), a sensor (24) is disposed for sensing vehicle deceleration exceeding a predetermined deceleration and for providing a control signal indicative thereof.  An RF transmitter (42) is electrically connected with the sensor (24) and is actuatable in response to the control signal to transmit an RF signal.  An RF receiver (100, 114) on each vehicle seat (16, 18) receives the RF signal and provides an output signal to actuate the locking means (76, 80) of the two seat belt retractors (60, 112).  Each vehicle seat (16, 18) also has (a) a battery (98) for supplying electric power to actuate the locking means (76, 80) of the retractors (60, 112) and (b) a piezoelectric member (90) responsive to an occupant sitting on the seat for generating an electric current to charge the battery (96).          In a second embodiment, a separate deceleration sensor (24a) is mounted on each vehicle seat for electrically actuating its associated retractor.  In a third embodiment, the transmitted signal provides the power for actuating a vehicle occupant restraint (178).
Patent CA-2147740-A1 (CA)
Title: Bulk package wrapping and securing system
Inventor: SHARP DENNIS
IPC: B65B11/02
Filed: 1993-11-08
Abstract: A system of wrapping and securing together the components of a bulk package (10) including a bottom tray element (14) and a top cap element (16) with an integral web of plastic material. The plastic material, while in a rope-like configuration, is looped about only a single pair of diagonally op-posed corners of each of the top cap element and bottom tray element. The tail or terminal end (44) of the web is secured in place by being positioned between a wrap convolution and the bulk package.
Patent CA-2148923-A1 (CA)
Title: The method of manufacturing alloy by using aluminum residuum
Inventor: TOYODA TETSUO
IPC: C21C7/06
Filed: 1993-11-12
Abstract: ABSTRACT       An object of the invention is to provide a method of manufacturing aluminum alloy by effectively using the aluminum residuum containing a low percentage of metal aluminum as industrial wastes. As the component ratio of a briquette of aluminum residuum, a mass of silica rock and a mass of anthracite, the weight percentage of Al2O3:SiO2:C=40:33:27  is maintained.  The blending having a maintained weight percentage is continuously introduced into the electric furnace for producing carbide. The electric furnace is provided with three self-baking electrodes having a diameter of 1400mm, and a transformer capacity of 30,000KVA. While the electrodes are embedded at the depth of about 1m and the temperature in the electric arc range is kept between 2200°C and 2400°C, the melting reduction is carried out. When 170 tons of aluminum residuum briquette were completely introduced into the electric furnace, 100 tons of Al-Si-Fe alloy were obtained. The aluminum alloy can be used as deoxidizer or temperature raising agent in the iron and steel manufacture with variously developed manufacture processes and needs.
Patent CA-2148934-A1 (CA)
Title: Targetable vector particles
Inventor: ANDERSON W FRENCH
IPC: C07K14/47
Filed: 1993-11-03
Abstract: A vector particle (e.g., a retroviral vector particle) containing a chimeric envelope includes a receptor binding region that binds to a receptor of a target cell. The receptor of the target cell is other than the amphotropic cell receptor. The receptor binding region may be a receptor binding region of a human virus. A portion of the envelope gene may be deleted and the deleted portion is replaced with another receptor binding region or ligand. Such vector particles are targetable to a desired target cell or tissue, and may be administered directly to the desired target cell or tissue as part of a gene therapy procedure, or administered directly into the patient.
Patent CA-2149981-A1 (CA)
Inventor: COUTURE RAYMOND
IPC: E04F11/108
Filed: 1995-05-23
Abstract: A  staircase  of  monocoque   construction comprises a pair of stringers, a series of successive and alternating treads and risers and nosings which are all made of solid wood or of composite wood such as O.S.B., pyrock, plywood, particle board, etc. At locations where these various components are to be joined, the components define facing grooves with a tapered  space  being  also  defined  between  the components.  A  gap  filling  substance,  such  as  a polyester resin reinforced with micro-glass fibers, injected  in  the  large  ends  of  the  tapered  spaces fills  the  grooves  as  well  as  the  tapered  spaces adhesively  joins  when  it  hardens  the  treads  and risers  one  to  another  in  succession,  and  also adhesively join the stringers and the nosings to the treads  and risers.  The hardened resin  "welds"  the wooden components one to another and thereby acting as  a welded mechanical key,  whereby the  assembled structure forms a monocoque staircase.  A method is also  suggested  to  produce  a  monocoque  staircase. Also, the invention concerns a method for joining as a weld a pair of wooden components in a monocoque assembly by defining facing grooves in the components and by providing a wedged space therebetween; then, a gap filling and adhesive resin is disposed in the grooves  and  in  the  spaces  which,  as  it  sets, resembles a welded key so as to join the components together in a monocoque assembly.
Patent CA-2150546-A1 (CA)
Title: Agent for inhibiting production of interleukin-8
Inventor: MATSUDA TAKAHIDE
IPC: C07D215/22
Filed: 1994-10-17
Abstract: The present invention provides agents for inhibiting production of interleukin-8 and for inhibiting granulocytes activation as well as novel method for curing inflammatory diseases. The agents for inhibiting production of interleukin-8, and for inhibiting granulocytes activation and for curing inflammatory diseases, which contain as an active ingredient, a carbostyril derivative represented by general formula (I) (wherein R is a halogen atom;  the substitution site of a side-chain of formula (A) is 3- or 4-position in the carbostyril skeleton; and the carbon-carbon bond between 3- and 4-positions in the carbostyril skeleton is a single bond or a double bond) or pharmaceutically acceptable salt thereof.
Patent CA-2151227-A1 (CA)
Title: Phosphonium salts, a process for the preparation thereof and use thereof
Inventor: NAUMANN CHRISTOPH
IPC: C07F9/6568
Filed: 1995-06-07
Abstract: Phosphonium salts, a process for the preparation thereof and use thereof The present invention relates to phosphonium salts of the formula (I)                   ( I ), in which Ar-Ar is a biphenyl radical, a 1-phenylnaphthyl radical or a 1,1'-binaphthyl radical, each CH2 group is arranged in the ortho position to the Ar-Ar bond, R is F, an alkyl radical or an alkoxy radical respectively having 1 to 8 carbon atoms, n is an integer from 0 to 4, R1 and R2 are identical or different and, independently of each other, are an alkyl radical having 1 to 10 carbon atoms, a cycloaliphatic radical having 5 to 10 carbon atoms, or are a radical Ar1-(R3)m, where Ar1 is a phenyl or naphthyl radical, R3 is F, C1, CF3, SO3H, SO3Me (Me = Li, Na or K), a dialkylamino radical having 2 to 8 carbon atoms, an alkyl radical or an alkoxy radical respectively having 1 to 8 carbon atoms and m is an integer from 0 to 5, or R1 and R2 together with the P atom form a ring having 4 to 8 members to which may be fused one or two aromatic rings or ring systems including 6 to 10 carbon atoms and X- is a monovalent anion or the equivalent of a polyvalent anion of a mineral acid, carboxylic acid, sulfonic acid or an alcohol. The invention further relates to a process for the preparation of the phosphonium salts and use thereof.
Patent CA-2154091-A1 (CA)
Title: Magnetic toner compositions
Inventor: GRANDE MICHAEL L
IPC: G03G9/09
Filed: 1995-07-18
Abstract: The present invention discloses a toner and developer compositions containing charge enhancing additive which impart or assist in imparting a positive charge to the toner resin particles and enable toners with rapid admix characteristics. The toner of the present invention comprises resin particles, magnetite, carbon black, rhodamine charge additive, wax, and a surface mixture of silica, strontium titanate and polyvinylidene fluoride.
Patent CA-2155124-A1 (CA)
Inventor: PAART ENN
IPC: D21C9/10
Filed: 1994-12-22
Abstract: PCT No. PCT/SE94/01245 Sec. 371 Date Aug. 8, 1995 Sec. 102(e) Date Aug. 8, 1995 PCT Filed Dec. 22, 1994 PCT Pub. No. WO95/17546 PCT Pub. Date Jun. 29, 1995A method and composition for suppressing or inhibiting the decomposing action of enzymes on hydrogen peroxide, e.g. peroxidase and catalase, during bleaching of cellulose fibres with hydrogen peroxide, especially in connection with the production of recycled paper, in such a way that microorganisms are not markedly affected, and discharges that are dangerous to the environment are minimized. The composition contains hydroxylamine, thiocyanate salts, formic acid, ascorbic acid or nitrites.
Patent CA-2156853-A1 (CA)
Title: Process for making cross-linked ethylenic polymer foam structures
Inventor: PARK CHUNG P
IPC: C08J9/06
Filed: 1994-03-04
Abstract: Disclosed is a process for making a cross-linked ethylenic polymer foam structure of an ethylenic polymer material of a cross-linked, substantially linear ethylenic polymer. The substantially linear ethylenic polymer has in an un-crosslinked state: (a) a melt flow ratio, I10/I2 5.63; (b) a molecular weight distribution, Mw/Mn, defined by the equation: Mw/Mn  (I10/I2) - 4.63; and (c) a critical shear rate at onset of surface melt fracture of at least 50 percent greater than the critical shear rate at the onset of surface melt fracture of a linear ethylenic polymer having about the same I2 and Mw/Mn. Further disclosed is a process for making the above foam structure.
Patent CA-2157149-A1 (CA)
Title: Aryl ester compound, its production process, epoxy resin composition using said compound, and copper-clad laminate using the epoxy resin composition
Inventor: UEDA YOUICHI
IPC: H01P1/04
Filed: 1995-08-29
Abstract: An aryl ester compound composed of a polyhydric phenol in which at least one OH group has been esterified with an organic acid or its derivatives having 1 to 20 carbon atoms, said polyhydric phenol being the condensation product of a phenolic compound represented by the general formula:          with a carbonyl compound represented by the general for-mula:                    which aryl ester compound can give, when used as a curing agent for an epoxy resin, a cured product having a low dielectric constant and a low dielectric loss tangent; an epoxy resin composition comprising as the essential com-ponents an epoxy resin, said aryl ester compound and a cure accelerator; and a copper-clad laminate using the epoxy resin composition.  The copper-clad laminate has a low dielectric constant and a low dielectric loss tangent and is excellent in adhesiveness as compared with conventional ones, and hence, is suitable for multilayer printed wiring board for high speed operation, especially at high-frequency region.
Patent CA-2160890-A1 (CA)
Title: Thread forming screw
Inventor: HETTICH STEFAN
IPC: F16B25/00
Filed: 1994-05-02
Abstract: A thread-forming screw that can be screwed directly into concrete, stone or the like has a screw head (11), a screw shank (12) and a thread (14) which extends at least partly over the length of the screw shank. The invention provides that the ratio of the outside diameter (da) to the core diameter (dk) of the screw is about 1.25 to 1.5, the ratio of the outside diameter (da) to pitch (p) is about 1.5 to 1.6, and the flank angle (.alpha.) of the thread (14) is less than 50.degree. and at least 35.degree..
Patent CA-2161050-A1 (CA)
Inventor: STEELE OWEN WILLIAM
IPC: F25C1/24
Filed: 1995-10-20
Abstract: A mold includes a generally cylindrical peripheral wall having an open top at one end and a closed base at the other end. On the base is provided a column member which extends upwardly inside the peripheral wall to a closed top at a height the same as that of the peripheral wall. The column member is tapered and flares outwardly toward the base. The mold is then filled with water which is allowed to freeze to form an ice body inside the mold. The ice body is turned out of the mold and placed over a burning candle with a flared end of the hollow tube formed by the column member engaged over the candle allowing the candle to burn inside the tube protected from the wind.
Patent CA-2163054-A1 (CA)
Title: Outward protruding corner light and support bracket therefor
Inventor: LOVELL ALLAN R
IPC: F21S8/00
Filed: 1995-11-16
Abstract: A light canister for protruding and typically exterior building corners has support brackets, a vertical groove to accommodate the corner, and hooks inside the groove to engage the support bracket. The bracket has two corner contact plates connected by a protruding connection forming a space between the wall and itself when the bracket is attached.  The hooks are dimensioned to fit snugly within the space.  Both are conveniently V shaped.  Triple reflectors (two adjustable) within the light canister allow illumination control in desired directions.
Patent CA-2163217-A1 (CA)
Title: Orthopedic casting article with easy open package
Inventor: DIETZ PETER T
IPC: B65D75/68
Filed: 1994-04-28
Abstract: The present invention provides kits of or-thopedic casting materials comprising a sheet of curable casting material, a lubricant, and an air and water impermeable package comprising a laminate sheet material and a means for facil-itating tearing of said sheet material when the outer surface of the pouch has been contacted with the lubricant. In a preferred embodiment of the present invention the means for facilitat-ing the tearing of said sheet comprises a matte-finish paper label material adhered to the outer surface of said package and crossing a cut.
Patent CA-2166962-A1 (CA)
Title: Granular detergent compositions
Inventor: POWELL SUZANNE
IPC: C11D3/37
Filed: 1994-07-07
Abstract: A granular detergent composition is provided containing (a) from 1 % to 30 % by weight of the composition of a surfactant system containing from 30 % to 100 % by weight of the surfactant system of high-sudsing surfactant selected from alkyl sulfate, alkyl ethoxysulfate, polyhydroxy fatty acid amide surfactant, and mixtures thereof; (b) from 0.05 % to 20 % of the composition of a suds-suppressing system comprising in combination (i) a spray-on component, comprising antifoam compound and a carrier fluid wherein said spray-on component is incorporated into said granular detergent composition by being sprayed onto one or more of the granular components of the composition, (ii) a particulate component, comprising in combination an antifoam compound and a water-soluble or water-dispersible carrier material, wherein said granular detergent composition is free from alkyl benzene sulfonate surfactant.
Patent CA-2168172-A1 (CA)
Title: Method for fabricating multisegment ridge waveguides
Inventor: KUEHN EDGAR WOLFRAM
IPC: G02B6/12
Filed: 1996-01-26
Abstract: A process for fabricating multisegment ridge waveguides is disclosed which is self-aligning and avoids unnecessary masking and etching steps. The process essentially comprises five steps: removing, in a starting layer structure, a top layer (DS) on both sides of areas where segment transitions (ST) are to be formed; depositing a metal contact layer (KN); etching a desired ridge-waveguide structure (R); covering the entire area except-the segment transition areas with photoresist; and removing the contact layer (KM) in the segment transition areas by a lift-off step, thus providing electrical separation between the individual segments.
Patent CA-2169349-A1 (CA)
Title: Euphausiid harvesting and processing method and apparatus
Inventor: SAXBY DAVID J
IPC: A23L17/00
Filed: 1996-02-12
Abstract: Method and apparatus for harvesting and processing zooplankton and, in particular, for harvesting and processing euphausiids for subsequent use as a feed product for early stage juvenile or larvae feed or for a food product as an additive.  The euphausiids are continuously harvested from coastal waters and dewatered.  The dewatered product is passed to a heat exchanger to increase its temperature and, thence, to a digester where a desired level of enzymatic activity is obtained.  The product is then held by a surge tank for subsequent transfer to a ball dryer where the product is dried at a relatively low temperature without destroying the stabilized enzymes created in the digester.  The digesting step may be deleted in the event the end use of the product is for a food product.
Patent CA-2170383-A1 (CA)
Title: Method and device for identifying single ground faults
Inventor: ERIKSSON LEIF
IPC: H02H3/16
Filed: 1994-09-28
Abstract: A method and a device for identifying, when a fault has been detected in a power network, single-phase to ground faults by determining for each phase an auxiliary current based on the present phase current, ground fault current and ground current. If the difference between two consecutive, calculated values of the auxiliary current in some phase is smaller than a predetermined limit value, this means that there is a single ground fault in this phase.